cidr_calculate
Calculate subnet details from a CIDR notation (network, broadcast, mask, host count).
This record as markdown: /tools/io-github-malamutemayhem-unclick-mcp-server/cidr-calculate.md
What cidr_calculate does on UnClick
AI agents call cidr_calculate to retrieve information from UnClick without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
cidr | string | Yes | CIDR notation (e.g. 192.168.1.0/24). |
Parameters from the server's own tool schema.
Why cidr_calculate is rated Low
This tool retrieves derived information from CIDR input parameters without modifying any state, executing code, or affecting external systems. It is a pure computational utility that returns network metadata. Classified as Read with low severity due to minimal risk—misuse would only provide incorrect network planning information, not enable unauthorized access or damage.
From the tool's definition Tool calculates and returns subnet details from CIDR notation input: 'network, broadcast, mask, host count'. No modification, deletion, or external execution occurs; it performs read-only mathematical computation.
Attacks that exploit this kind of access
The rule that runs cidr_calculate safely
PolicyLayer is an MCP gateway: it sits between your AI agents and UnClick, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For cidr_calculate, this is the rule to start with:
cidr_calculate is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect UnClick, apply this rule, and every cidr_calculate call is checked against it from then on.
Questions about cidr_calculate
Calculate subnet details from a CIDR notation (network, broadcast, mask, host count). It is categorised as a Read tool in the UnClick MCP Server, which means it retrieves data without modifying state.
cidr_calculate accepts 1 parameter: cidr. Required: cidr. The full parameter table on this page comes from the server's own tool schema.
Register the UnClick MCP server in PolicyLayer and add a rule for cidr_calculate: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches UnClick. Nothing to install.
cidr_calculate is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the cidr_calculate rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for cidr_calculate. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
cidr_calculate is provided by the UnClick MCP server (@unclick/mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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